Unique shape-sorting experience! Encourages fine motor skills, sensory learning, spatial reasoning, shape-matching, exploration. Fit the hollow shapes into their matching slots. Fit the silicone plugs into the hollow shapes. Fit the plugs right over the shapes sticking out of the base. Each shape in the base has a unique texture design - Each plug has a handle to match. Shapes include star, circle, square, diamond, hexagon, triangle. Plugs made of 100% food-grade silicone. High-quality materials and construction - Lasting durability. Includes: base, 6 hollow shapes, and 6 silicone plugs. 13 pieces total. Ages 10 months and up.